1 For the correlation results: a What interpretation can you give to the results shown? b What assumptions underlie your interpretations? c How could these assumptions be tested? The data presented in the Milan Food Cooperative (A) (Case 3-1) was subjected to correlation and regression analysis with three objectives in mind: 1 Determination of the strength of association between families' food spending and demographic characteristics (correlation and regression) 2 Determination of a function by which we can estimate a family's spending from its demographic data (regression) 3 Determination of the statistical "confidence" in the above tests The variables included in this analysis were: 1 Weekly food expenditures (S) 2 Number of persons in household